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Definition

gold bar is a quantity of refined metallic gold of any shape that is made by a bar producer meeting standard conditions of manufacture, labeling, and record keeping.

Larger gold bars that are produced by pouring the molten metal into molds are called ingots. Smaller bars may be manufactured by minting or stamping from appropriately rolled gold sheets.

The standard gold bar held as gold reserves by central banks and traded among bullion dealers is the 400-troy-ounce (12.4 kg or 438.9 ounces) Good Delivery gold bar.

The kilobar, which is to say 1000 grams in mass, is the bar that is more manageable and is used extensively for trading and investment. The premium on these bars when traded is very low over the spot value of the gold making it ideal for small transfers between banks and traders. Most kilobars are flat, although some investors, particularly in Europe, prefer the brick shape.

Standard bar weights

Gold is measured in troy ounces, often simply referred to as ounce when the reference to gold is evident. One troy ounce is equivalent to 31.1034768 grams.

Commonly encountered in daily life is the avoirdupois ounce, an Imperial weight in countries still using British weights and measures or United States customary units. The avoirdupois ounce is lighter than a troy ounce; one avoirdupois ounce equals 28.349523125 grams.

The standard gold bar held and traded internationally by central banks and bullion dealers is the Good Delivery bar with a 400 oz. nominal weight. However, its precise gold content is permitted to vary between 350 oz and 430 oz. The minimum purity required is 99.5% gold. These bars must be stored in recognized and secure gold bullion vaults to maintain their quality status of Good Delivery. The recorded provenance of this bar assures integrity and maximum resale value.

One tonne = 1000 kilograms = 32,150.746 troy ounces.

One kilogram = 1000 grams = 32.15074656 troy ounces.

One tola = 11.6638038 grams.

One tael = 50 grams.

TT (Ten Tola) = 117 grams (3.75 oz)

Tola is a traditional Indian measure for the weight of gold and prevalent to this day. Many international gold manufacturers supply tola bars of 999.96 purity.